@bgcColo:#c4c8cb;
body {
    background-color: #333;

    .wrap {
        position: relative;
        margin: 0 auto;
        width: 570px;
        height: 700px;
        border: 1px solid #000;
        background-color: @bgcColo;
        .mine{
            position: absolute;
            bottom: 15px;
            left: 50%;
            transform: translate(-50%,0);
            width: 50px;
            height: 60px;
            background: url("../images/友军.png");
            background-size: 100%;
        }
        .enemy{
            position: absolute;
            // top: 20px;
            // left: 40px;
            width: 30px;
            height: 21px;
            background: url("../images/敌军.png");
            background-size: 100%;
        }
        .enemy:nth-of-type(2){
            top: 50px;
            left: 440px;
        }
        .pd{
            position: absolute;
            width: 12px;
            height: 23px;
            background: url("../images/子弹.png") no-repeat;
            background-size: 100% 100%;
        }
    }
}